{"instruction": "You are an expert in relationship extraction. Please extract relationship triples that match the schema definition from the input. Return an empty list for relationships that do not exist. Please respond in the format of a JSON string.", "schema": ["country of administrative divisions", "nationality", "place of death", "location contains"], "input": " This was in fact the case with Sally Hemings , one of several children born to a mixed-race slave named Betty Hemings and a white lawyer and businessman named John Wayles the father of Thomas Jefferson 's wife , Martha . "}
{"country of administrative divisions": [], "nationality": [], "place of death": [], "location contains": []}